[FEAT] cleanup GET /wallet endpoint, add wallet api routes (#1932)

* [FEAT] cleanup GET /wallet endpoint, add wallet api route
this removes the functionalitiy to create accounts and wallets via
the GET /wallet endpoint in generic.py

it add endpoints inside the api.py for it and the frontend is modified to use the api endpoints

this also simplifies for the `feat/login` for the route.

* remove stale generic tests and add api tests

* bug wrong endpoint create account

* vlad nitpick

* added checkif deleted is 404

* reload after renaming wallet

* another iteration with vlad

* create new wallet if it none exist

* fix delete refresh

* formatting

lnbits/core/crud.py

@@ -77,7 +77,7 @@ async def get_user(user_id: str, conn: Optional[Connection] = None) -> Optional[
                 SELECT balance FROM balances WHERE wallet = wallets.id
             ), 0) AS balance_msat
             FROM wallets
-            WHERE "user" = ?
+            WHERE "user" = ? and wallets.deleted = false
             """,
             (user_id,),
         )